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MIS: Home > Why

Why do Endoscopic Surgery?

The goal for using endoscopes for surgery is to reduce the tissue trauma and body's response to the injury of traditional (or open) surgery.

The goal for using endoscopes for surgery is to reduce the tissue trauma and body's response to the injury of traditional (or open) surgery. As compared to minimally invasive surgery, traditional surgery requires much longer incisions and the stretching of incisions with retractors. Minimally invasive surgery usually uses several very small openings, thus reducing the surgical insult.

Controlled studies in patients and laboratory animals have found decreased stress response in patient operating endoscopically as compared to traditional surgery.

Endoscopy is more critical in exotic and zoo animals as even a physical examination or obtaining a blood sample frequently requires sedation or general anesthesia. In these animals, it is common to perform all diagnostic procedures during one anesthetic episode such that blood sampling, focused physical examinations, radiography, ultrasonography, and endoscopy are performed at the same time. Endoscopy may be with rigid or flexible scopes depending on the nature of the problem. Rigid endoscopy can provide diagnostic information and may even provide the means to treatment.


Thorascopic Vs. Open Pericardectomy

Pain Score  X  Time (hrs)



Plasma Cortisol (nmol/L)  X  Time (hrs)



Blood Glucose  X  Time (hrs)


Walsh, Remedios: Vet Surg, 1999.



In addition the use of telescopes, frequently with side viewing capability, combined with photographic enlargement and better lighting produces much better viewing inside the body than can be obtained with traditional surgeries.

Pet owners desire the same care for pets as they would for themselves. When given the choice of an open joint surgery or arthroscopy, the vast majority opt for arthroscopy. If presented options for removal of a gall bladder, most would opt for laparoscopy instead of an open abdominal surgery.

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